A. Gruverman et al., SCANNING FORCE MICROSCOPY FOR THE STUDY OF DOMAIN-STRUCTURE IN FERROELECTRIC THIN-FILMS, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 14(2), 1996, pp. 602-605
A piezoresponse technique based on scanning force microscopy (SFM) has
been used for studying domain structure in ferroelectric thin films.
Studies were performed on Pb(Zr-x,Ti-1-x)O-3(PZT) thin films produced
by a sol-gel method. The piezoresponse images of the PZT films were ta
ken before and after inducing polarization in the films by applying a
direct current voltage between the bottom electrode and the SFM tip. P
olarization induced patterns were written with 20 V pulses and subsequ
ently imaged by the SFM piezoresponse technique. The effect of the fil
m structure on the imaging resolution of domains is discussed. (C) 199
6 American Vacuum Society.